关于溶胶凝胶法在不锈钢基体上制备SiO2-TiO2-Al2O3防腐涂层的研究
A STUDY ON SiO2-TiO2-Al2O3 COATINGS FOR CORROSION PROTECTION OF STAINLESS STEEL PREPARED VIA SOL-GEL PROCESS
摘 要
ABSTRACT
ACKNOWLEDGEMENTS
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 Background
1.2 Overview of sol-gel process and current studies on sol-gel dip coating at home and abroad
1.2.1 Overview of sol-gel process
1.2.2 Current studies on sol-gel dip coating at home and abroad
1.3 The purpose and significance of research
1.4 Introduction of sol-gel process
1.4.1 Definition of sol-gel process
1.4.2 The advantages and disadvantages of sol-gel process
1.5 Principles of sol-gel process
1.5.1 Sol preparation
1.5.2 Sol-gel deposition methods
1.5.3 Thickness control in dip coating process
1.5.4 Microstructure control in sol-gel derived films
1.6 Sol-gel coating on metals
CHAPTER 2 EXPERIMENTAL PROCEDURE
2.1 Raw materials
2.2 Sample preparation
2.2.1 Preparation of substrates
2.2.2 Preparation of coating solution
2.3 Fabrication of coatings
2.4 Heat treatment
2.5 Characterization techniques
2.5.1 TGA-DTA analyses
2.5.2 Surface morphology (SEM)
2.5.3 Compositional characterization (EDX)
2.5.4 FTIR Analysis
2.5.5 Electrochemical tests
CHAPTER 3
3.1 Phase transition studied by thermoanalysis
3.2 The surface morphologies of coating analysis
3.2.1 Optical microscopic images of coating analysis
3.2.2 SEM Analysis of the coating
3.2.3 EDX analysis of the coating
3.3 FTIR analysis of the coating
3.4 Evaluation of corrosion resistance
3.4.1 Corrosion test
3.4.2 Electrochemical polarization curves
CHAPTER 4 CONCLUSION
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